Distributing board for electric house installations



M. BREITNER.

I DISTRIBUTING BOARD FOR ELECTRIC HOUSE INSTALLATIONS.

. APPLICAIION FILED SEPT. 16. I920- 1,427,779. ratenteasept-s 7 22 wlzvept? y a Afformy Patented Sept. 5, 1922.

1,421,779 PATENT OFFICE.

MELCHIOR BREITNER, OF HALLE-ON-THE-SAALE, GERMANY.

rnsrnrnurnve BOARD FOR ELECTRIC nonsnrnsrarLA'rrons.

Application filedxSeptember 16,1920. Serial No. 410,728.

To all whom it may concern:

Be it known that I, MELOHIOR BREITNER, engineer, a citizen of the German Republic, and residing at Halle-on-the-Saale, Germany, have invented certain new and useful Improvements in a Certain New Distribut ing Board for Electric House Installations for which I have filed an application in ermany Aug. 30, 1919, No. B 90602 VIII/21c), of which the following is a specification.

This invention relates to a distributing board which is to receive the meters and safety fuses employed in connection with The chief ob-H electric house installations. ject of'the invention is to prevent the branching off of wires, at the rear of the distributingboard, through which current is conducted that does not flow through the meters. To prevent such undue consumption of current it has already been proposed to surround the wooden or marble board with a frame filling up'the space between the board and the wall behind it, or to mount the board upon such a frame. That 1s, however, a rather clrcumstantial contrivance, and, moreover, no actual guarantee against the undue consumption is obtained because the board may be taken off the frame or the frame may be taken off the board when the connections are easily accessible.

The drawback in question, is however,

fully overcome by making the board and the frame of one piece so that they cannot be disconnected. I therefore manufacture the board from one piece of sheet-metal, the rim-parts of which are bent rearwards to form a kind of frame. The connections are neither visible, nor accessible, and it is practically impossible to make undue connections of the kind in question.

In order to make my invention more clear, I refer to the accompanying drawing, in

which similar letters denote similar parts throughout the several views, and in which:

Figure l is a transversesection through a distributing-board constructed according to this invention; Fig. 2 is a front view of it; Fig. 3 is a longitudinal section through the board; Fig. dis a detail elevation and cross section of the strip 6. I

Fig. 5 is a detail section of a modified construction.

The distributing-board consists of a sheetvmetal plate a, the longitudinal rim-parts b b of which are rearwardly bent at right angles to form'the side'parts of the frame which is V to allow of inspecting the space behind the board in general and the connections in particular, if ,a disturbance should have occurred, it being, thus, in such a case not necessary to detach the whole board.

The side-flanges b bare connected with each other at their upper half by a trans verse strip 6 havingtwo transverse slots h h.

I11 front of this strip the front-platea has a vertical cut-out extending from the upper edge downwards to such a depth as issufiicient to receive some safety-fuse carriers 7 which are shoved into said cut-out from above and are afliXed tothe strip 6 with aid of the slots h. 2' it are guideand fasteningslots for a meter or meters. Owing to the arrangement and shape of these slots as shown, the plate or board a is capable of receivingand holding meters of very different sizes. is are lugs formed of bent-off parts of the rim parts 0 and d and having each a hole. Other holes are in the corners of the board a'just in front of the holes of the lugs 70. The holes of the lugs it serve for the receptioniof screws by which the boardis aliixed to the respective wall. The holes in front of them receive screws m which must be removed in order to be abl to find access to the inner screws. -The distributing-board offers a good appearance, is capable of receiving all apparatus or devices required for a house-installation, and may be manufactured at a low price; its chief advantage resides, however, in thesafety it offers against the establishing of undue connections made for the purpose of consuming current without paying for it. Making such connections is very difficult for persons not acquainted with the construction'of the board. i In the case of larger installations two or more boards of the described kind are arranged side by side; the lateral frame-parts I desire to secure by a patent of the United States is:

A distributing board for electric house installation, comprising a sheet metal plate having side flanges, a detachable end member arrz'mged between said side flanges and having a flange bearing against the inner side of the plate, and screws securing said flange and said plate together, the said side flanges of the plate having inturned lugs which bear 10 against said detach able member.

In testimony whereof I have alfixed my signature in presence of two Witnesses.

MELCHIOR BREITNER.

llitnesses RUDULPH FRIOKE, THEKLA Fnioim. 

